This solid carbide upcut spiral router bit is multi-helix square bottom 4-flute end mill cutter for wood working. Four flutes design allows these router bits to provide the best finish on your project. Up cut spiral design provides the best control with hand or cnc routing.

This 4 flute spiral bit is great for applications with high feedrate or slow spindle speed. Slow feedrates or high speed spindles will cause excess heating in bits with high flute counts. Excess heating can cause chips to weld to the bit when cutting plastics, premature tool wear, and poor cut quality.